Video
Prepare Construction Materials to Build a Biosand Filter (BSF)
Part 1 of a series on how to construct a biosand filter (BSF). Learn how to sieve the gravel and sand to the proper size and how to separate the piles to keep the quality consistent.
Video
Prepare Construction Materials to Build a Biosand Filter (BSF)
Part 1 of a series on how to construct a biosand filter (BSF). Learn how to sieve the gravel and sand to the proper size and how to separate the piles to keep the quality consistent.
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